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Abstract:
About 30 years ago, Ernst Fischer introduced a new approach to muscle research by comparing the fine structure, and the function of the contractile mechanism of smooth and striated muscle. At that time (Fischer, 1936a and b; 1938) he systematically and successfully investigated the total, the intrinsic, and the form birefringence of smooth muscles and compared his results with analogous data concerning the contractile structure (Noll and Weber, 1935) and the oriented actomyosin threads (Weber, 1935) of skeletal muscle. These investigations were especially important because the birefringence of all muscles is based on its contractile structure and functional state, and because birefringence was better understood in micellar and molecular terms since Wiener's theory.
